Safety pin



Aug. .14, 1928 A. PHILIP? SAFETY PIN Filed April 2, 1927 Patented Aug.14, 1928.

UNITED STATES.

PATIENT I oF ic ARNOLD IPHILIIP, or cnroaeo. ILLINOIS.

SAFETY PIN.

This invention relates to a pin of. the type commonly referred to as asafety pin and particularly to a pin of this character which 1s soconstructed that the accidental opening of the. pin after it has beenclasped is obviated.

The object of 'the invention is the provision of a pin of the abovenoted character having spring actuated means for holding the needle ofthe pin in locked position.

One of the features of the invention is a safety pin having the needlepart or pin proper thereof formed for bodily. movement relative to theback of the pin and tension means joining theback and needle soconstructed as to. lock the needle in clasped position or to permitbodily longitudinalmovc ment of the needleto remove the point of theneedle from the clasp.

Other features and advantages will appear from time to time as thedescription of the invention rogresses.

It is believe the further disclosure of the invention will be understoodmost readily from a detailed description thereof taken in connectionwith the accompanying drawings in which Fig 1 is a side view of a pinembodying a preferred form of the invention;

Fig. 2 is a view looking at the pin of Fig. 1 from the top of thedrawing, and

Fig. 3 is an end view of the pin.

Referring now to the drawings in which like reference charactersindicate the same parts in the several figures, 10 indicates the shankor back portion of the pin. In the drawings the back 10 is shown formedof sheet metal U-shaped in cross section although this part of thedevice may be formed of wire or other suitable material without dearting from the spirit of the invention.

he back 10 terminates at one end ina clasp or needle point receivingportion 11.

The sides of the clasp 11 are bifurcatedat the tip to form a guide 12,to assist in guiding the point of the needle 13 into the clasp 11Tntegral with the other end of the back 10 are the substantiallyparallel flanges, 14, 14' between which is mounted one end, 15

of the pin proper, 13. Formed in the flange,

Application filed April 2, 1927. Serial No. 180,385.

Integral with the end of the part, 15 is a curved spring portion, 18,the end of which is secured bet-ween the flanges 14;, 1 1 in'any desiredmanner. In the present embodiment a lug,.20, is pressed out of theflanges 14 against whichthe end of spring, 18, bears. The tension inspring, 18, is suchthat the needle or pin proper, 13, is urged longitudinally to the left as seen in Figs. 1 and 2 of the drawings, that is, thepoint of the pin is forced'toward or into the clasp 11. The pin isguided to move in a longitudinal direction. by the parallel portionsofzthe U-shaped part,.17, sliding in the slot 16. It may be explainedhere that instead of forming the pin with the U-shitpedbend, 17,, it maybe provided, in any manner,.with outwardly extending parallel lugscorresponding to the legs or parallel portions of part, 17. These may besecured to the pin by solder, by being riveted thereto or in any otherdesired manner,

WVhen it is desired to unclasp the pin, the pin or needle part is drawnto the right as seen in Figs. 1 and 2 of the drawings. This may be doneby grasping the loop of spring, 18. hen the right hand legof the bend,17, reaches the end of the slot, 16, the pin is tilted into the positionshown in Fig. 1 of the drawings. The tension in spring, 18, tends tohold the pin in this position so it will remain unclasped. When,however, the pin is tilted about the left leg of portion, 17, as a pivotuntil parallel with the back of the pin, the spring acts to force it tothe left, as seen in Figs. 1 and 2 so the pointof the pin will be seatedin the clasp, 11.

While in the present embodiment of the invention the actuating spring isshown in tegral with the end of the needle portion, it is to beunderstood that the spring may be formed separately therefrom and may beflat, spiral, round or any other desired form so long as it operates 'tourge the pin to the left as seen in the drawings and also will act toretain the pin in unclasped position.

The present invention was particularly designed as a safety pin but itsuse for other purposes is contemplated. Various modifications in thedesign and structure of the pin are also contemplated. The inventiontherefore should be limited only by the scope of the appended claims.

Having thus described my invention what I consider to be patentable anddesire to secure by Letters Patent of the United States is: I

1. In a safety pin, a back portion, a pin or needle portion, a pointreceiving clasp at one end of said back portion, means at the oppositeend of said back portion for automatically guiding and directing saidpin into said clasp and a spring joining said pin to said back portionnormally urging said pin toward said clasp.

2. In a safety pin, a back portion, a pin or needle portion, a pointreceiving clasp at one end of said back portion, a guide at the oppositeend of said back portion for automatically guiding said pinlogitudinally and directing it into said clasp and a spring joining saidpin to said back portion normally urging said pin toward said clasp.

3. In a safety pin, a back portion, a pin or needle portion a pointreceiving clasp at one end of said back portion, a flange at theopposite end of said back portion having a slot therein for guiding anddirecting said pin into said clasp and a spring joining said pin tosaidback portion normally urging said pin toward said clasp.

4. In a safety pin, a back portion, a pin proper or needle portion, apoint receiving clasp at one end of said back portion, a flange at theopposite end of said back portion having a slot therein, outwardly exingthe point thereof toward said clasp.

5. 'In a safety pin, a back portion, a pin proper or needle portion, apoint receiving clasp at one end of said back portion, a flange at theopposite end of said back portion having a slot therein, outwardlyextending lugs or legs carried by said pin slidable in said slot, andguiding said pin to move in a longitudinal direction and a springjoining said pin to said back and normally forcing the point thereoftoward said clasp.

6. In a safety pin, a back portion, a pin proper or needle portiomapoint receiving clasp at one end of said back portion,-a flange at theopposite end of said back portion having a slot therein, outwardlyextending lugs or legs carried by said pin slidablein said slot andforcing said pin to have a longitudinal movement and a spring joiningsaid pin to said back and normally fore ing the point thereof towardsaid clasp, said slot having an offset at one end thereof to permit saidpin to swing to unclasped or open position.

In testimony whereof I have signed this specification.

ARNOLD PHILIPP.

